package main

import (
	"fmt"
	_ "fmt"
)

func main() {

	s := "hello world"
	fmt.Println(len(s))
	fmt.Println(s[0], s[10])
	fmt.Println(s)
	fmt.Println(s[:])
	fmt.Println(s[1:])

	fmt.Println(s[5:])

	fmt.Println(s[:6])

}
